Appendix
In preparing this report, the Committee on Astrobiology and Planetary Science has specifically considered the priority questions identified in Vision and Voyages.1Table A.1 identifies the priority questions potentially addressable by the missions already studied (see Table 1) and those that might be addressed by concepts suggested for study in this report (see Table 2).
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1 National Research Council, Vision and Voyages for Planetary Science in the Decade 2013-2022, The National Academies Press, Washington, D.C., 2011, p. 314.
TABLE A.1 Priority Questions from Vision and Voyages and Planetary Missions: Completed Studies and Missions Suggested for Study
Crosscutting Themes | Priority Questions | Mission Studies Completed | Missions Suggested for Study |
---|---|---|---|
Building New Worlds | What were the initial stages, conditions and processes of solar system formation and the nature of the interstellar matter that was incorporated? | n/a | Dwarf Planets Space Telescope |
How did the giant planets and their satellite systems accrete, and is there evidence that they migrated to new orbital positions? | Europa Lander Ice Giants |
Saturn System Dwarf Planets Space Telescope |
|
What governed the accretion, supply of water, chemistry, and internal differentiation of the inner planets and the evolution of their atmospheres, and what roles did bombardment by large projectiles play? | Venera-D | Moon Mars Venus Dwarf Planets Space Telescope |
|
Planetary Habitats | What were the primordial sources of organic matter, and where does organic synthesis continue today? | Europa Lander | Mars Dwarf Planets Saturn System Space Telescope |
Did Mars or Venus host ancient aqueous environments conducive to early life, and is there evidence that life emerged? | Venera-D | Venus Mars |
|
Beyond Earth, are there modern habitats elsewhere in the solar system with necessary conditions, organic matter, water, energy, and nutrients to sustain life, and do organisms live there now? | Mars Orbiter Europa Lander |
Mars Saturn System |
|
Workings of Solar Systems | How do the giant planets serve as laboratories to understand Earth, the solar system and extrasolar planetary systems? | Ice Giants | Saturn System Space Telescope |
What solar system bodies endanger and what mechanisms shield Earth’s biosphere? | n/a | Moon Space Telescope |
|
Can understanding the roles of physics, chemistry, geology, and dynamics in driving planetary atmospheres lead to a better understanding of climate change on Earth? | Venera-D Mars Orbiter Ice Giants |
Venus Mars Saturn System Space Telescope |
|
How have the myriad chemical and physical processes that shaped the solar system operated, interacted, and evolved over time? | Venera-D Ice Giants |
Venus Moon Mars Dwarf Planets Saturn System Space Telescope |